Home / 143,157.83-214,409.60-68,330.50

Finding the Fourth Proportional to 143,157.83, 214,409.60 and 68,330.50

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Solution

The fourth proportional to 143,157.83, 214,409.60 and 68,330.50 is: 102,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,157.83 : 214,409.60 = 68,330.50 : x
  2. Step 2: Convert to fraction form
    143,157.83/214,409.60 = 68,330.50/x
  3. Step 3: Cross multiply
    143,157.83x = 214,409.60 × 68,330.50
  4. Step 4: Simplify right side
    143,157.83x = 14,650,714,295.12
  5. Step 5: Solve for x
    x = 14,650,714,295.12/143,157.83
  6. Step 6: Final answer
    x = 102,339.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.